Abstract
Astragals membranaceus (A. membranaceus) has been widely used as food material as well as medicinal ingredients for therapeutic effects. The objective of this study was to determine physiological activities such as polyphenol content, SOD-like activity, tyrosinase activity, nitrite scavenging activity and EDA (electron donating ability) of 2-and 6 -year root A. membranaceus extracts. SOD-like activities of all samples were shown the high effects (over 86.63%), and 6-year root A. membranaceus was higher (1.90–5.52%) than 2-year root A. membranaceus. Nitrite Scavenging activity (pH1.2) of 6 year root A. membranaceus were higher (9.08–13.42%) than 2 year root A. membranaceus extracts, and 50% ethanol extracts of samples were highest. EDAs of 2-year root A. membranaceus extracts were higher (26.76–44.46%) than 6-year root extracts, while those extracts were lower (42.66–74.05%) than 1.0% and 0.1% L-ascorbate solutions. Tyrosinase inhibitory effects and total polyphenol contents of 6 year root A. membranaceus extracts were higher than 2 year root A. membranace (1.90–5.52%), while both samples were lower than 1.0% and 0.1% L-ascorbate solutions. 6-year root A. membranaceus tended to have higher antioxidant effects of these antioxidant experiments than 2-year root A. membranaceus. Therefore, these suggest that the extracts of A. membranaceus can be used as a data to develop more efficient material in functional food.
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Abbreviations
- A. membranaceus :
-
Astragals membranaceus
- EDA:
-
electron donating activity
- NSA:
-
nitrite-scavenging activity
- ROS:
-
reactive oxygen species
- SOD:
-
superoxide dismutase
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Kim, J.Y., Do, JR., Kwon, JH. et al. Antioxidant effects of Astragalus membranaceus extracts with extraction conditions. J. Korean Soc. Appl. Biol. Chem. 52, 702–707 (2009). https://doi.org/10.3839/jksabc.2009.116
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DOI: https://doi.org/10.3839/jksabc.2009.116